my mina node stop syncing suddenly

[sukichan-bb]

Hi all
i have setup a mina node, and it run well in the beginning , but suddenly it failed, but after i removed a data, and it sync again,. the log below is the error message i got when the node is failing.

2023-11-10 02:41:20 UTC [Info] Registering async shutdown handler: "Close transition frontier, if exists"
2023-11-10 02:41:21 UTC [Fatal] Prover terminated due to signal, terminating daemon
2023-11-10 02:41:21 UTC [Info] Running async shutdown handler: "Close transition frontier, if exists"